Please use this identifier to cite or link to this item: https://repositorio.accefyn.org.co/handle/001/774 Cómo citar
Full metadata record
DC FieldValueLanguage
dc.contributor.authorLópez Suspes, Framsol-
dc.contributor.authorGonzález, Guillermo A.-
dc.date.accessioned2021-10-14T22:08:47Z-
dc.date.available2021-10-14T22:08:47Z-
dc.date.issued2013-09-15-
dc.identifier.urihttps://repositorio.accefyn.org.co/handle/001/774-
dc.description.abstractSe presenta una nueva familia de discos gruesos newtonianos estables a partir del método de desplazamiento, corte, llenado y reflexión construidos en (González & Letelier, 2004; Vogt & Letelier, 2005). Soluciones de la ecuación de Laplace en coordenadas cilíndricas son consideradas, éstas representarán el campo gravitacional de objetos con momentos multipolares externos solamente. Se definen y calculan las cantidades físicas en el plano del disco, tales como, la frecuencia epicíclica, κ, la frecuencia vertical, ν, y la velocidad circular, vc de las partículas. Además, se determina la densidad superficial de masa, σ, la densidad del disco grueso, ρ, y el criterio de estabilidad de los discos gruesos a través del momentum angular o el criterio de Rayleigh (Rayleigh, 1917; Landau, 1987). Finalmente, se representan las propiedades físicas para algunos para ́metros considerando sólo hasta el término cuadrupolar en la expansión multipolar del potencial gravitacional.spa
dc.description.abstractWe present a new family of stable thick discs form known displace cut, fill and reflect method (González & Letelier, 2004; Vogt & Letelier, 2005) is presented. Solutions of the Laplace equation in cylindrical coordinates are considered, these represent the gravitational field of objects with only external multipole moments. The ´hysical quantities in the plane of the disk , are defined and calculated such as, the epicyclic frequency, k, the vertical frequency, v, and the circular velocity, vc of particles. The surface density, α, density of thick disk, ρ, and stability of thick disks through of specific angular momentum or Rayleigh criterion (Rayleigh, 1917), and (Landau, 1987) were calculated. Finally, the physical properties are shown for only some parameters considering only until quadrupolar term in the expasion gravitational potential multipolar.spa
dc.format.extent5 páginasspa
dc.format.mimetypeapplication/pdfspa
dc.language.isospaspa
dc.publisherAcademia Colombiana de Ciencias Exactas, Físicas y Naturalesspa
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 Internationalspa
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/spa
dc.titleThick Disks with Newtonian Multipolar Momentsspa
dc.typeArtículo de revistaspa
dcterms.audienceEstudiantes, Profesores, Comunidad científicaspa
dcterms.referencesBinney, J. & Tremaine, S., 2008. Galactic Dynamics. 2nd ed. Princeton University Pressspa
dcterms.referencesCooray, A. R., 2000. Galaxy clusters: oblate or prolate? MNRAS 313, 783-788spa
dcterms.referencesDavies, R. L., & Birkinshaw, M., 1986. NGC 4261 - A prolate elliptical galaxy. Ap. J. 303, L45-L49.spa
dcterms.referencesFasano, G., & Vio, R., 1991. Apparent and true flatten- ing distribution of elliptical galaxies. MNRAS 249, 629-633.spa
dcterms.referencesGonzalez, G. A. & Letelier, P. S., 2004. Exact general relativistic thick disks, Phys. Rev. D 69, 044013.spa
dcterms.referencesHelmi, A., 2004. Is the dark halo of our Galaxy spherical? MNRAS 351, 643-648.spa
dcterms.referencesKuzmin, G. G., 1956. Model of the steady Galaxy allow- ing of the triaxial distribution of velocities, Astron. Zh. 33, 27.spa
dcterms.referencesLandau, L.D. & Lifshitz, E.M., 1987, Fluid Mechanics, 2nd ed. Pergamon Press, Oxford, Sec. 27.spa
dcterms.referencesMerritt, D., 1996. Chaos and the Shapes of Elliptical Galaxies. Sience 271, 337-340.spa
dcterms.referencesMosenkov, A. V., Sotnikova, N. Ya., Reshetnikov, V. P., 2010. 2MASS photometry of edge-on spiral galaxies - I. Sample and general results. MNRAS 401, 559-576.spa
dcterms.referencesRamos, J. F. , Gonza´lez, G. A. & Lo´pez-Suspes, F., 2008. Mon. Not. R. Astron. Soc., 371, 1873.spa
dcterms.referencesRayleigh, L., 1917. On the Dynamics of Revolving Fluids. Proc. S. Soc. Lond. Ser. A, 93:148.spa
dcterms.referencesVogt, D. & Letelier, P. S., 2005. New models of general relativistic static thick disks, Phys. Rev. D 71, 084030spa
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.type.driverinfo:eu-repo/semantics/articlespa
dc.type.versioninfo:eu-repo/semantics/publishedVersionspa
dc.rights.creativecommonsAtribución-NoComercial 4.0 Internacional (CC BY-NC 4.0)spa
dc.identifier.doihttps://doi.org/10.18257/raccefyn.10-
dc.subject.proposalDisco gruesospa
dc.subject.proposalThick diskeng
dc.subject.proposalRayleighspa
dc.subject.proposalRayleigheng
dc.subject.proposalFrecuencia epicíclicaspa
dc.subject.proposalEpicyclic Frequencyeng
dc.subject.proposalMultipolosspa
dc.subject.proposalMultipoleeng
dc.type.coarhttp://purl.org/coar/resource_type/c_6501spa
dc.relation.ispartofjournalRevista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturalesspa
dc.relation.citationvolume37spa
dc.relation.citationstartpage301spa
dc.relation.citationendpage305spa
dc.publisher.placeBogotá, Colombiaspa
dc.contributor.corporatenameAcademia Colombiana de Ciencias Exactas, Físicas y Naturalesspa
dc.relation.citationissue144spa
dc.type.contentDataPaperspa
dc.type.redcolhttp://purl.org/redcol/resource_type/ARTREFspa
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2spa
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85spa
Appears in Collections:BA. Revista de la Academia Colombiana de Ciencias Exactas Físicas y Naturales

Files in This Item:
File Description SizeFormat 
1.Discos Gruesos con Momentos Multipolares Newtonianos.pdfCiencias Físicas235.16 kBAdobe PDFThumbnail
View/Open


This item is licensed under a Creative Commons License Creative Commons